Sieve.



PATENTED JAN. 28, 1906. J. GAVEN.

W. H. HOYT & W

SIEVE'.

APPLICATION FILED JAN. 6, 1905.

QVil'nmnw) W,

UNITED STATE-S PATENT ()FFIOE.

iiuLLIAM HELM HOYT AND WILLIAM JOSEPH GAVEN, or BRIDGEPORT,

CONNECTICUT, ASSIGNORS TOTI-IE BURT COMPANY, OF HACKENSACK,

NEW JERSEY, A CORPORATION NEW JERSEY.

SIE-VE.

- Specification-of Letters Patent.

Patented Jan. '23, lacs.

Application filed January 6, 1905. Serial No. 239,936.

To all whmn it may concern:-

Be it known that we,WILLIA1\r.HEL.-u HOYT.

Improvement .in Sieves, which invention is I fully set forth in the followin specification.

The present, invention re ates to'an improvement lIl sieves or sifters for accurately applyingion any desiredsurface a continuous layer of uniform thickness of powder or other finely-divided material.

facture of duplicate sound-records of the flat or disk type wherein as the first step in the production of such duplicate records a continuous layer of glaze or shellac (which is to constitute the face of the duplicate sound-record) of practically uniform'thickness is deposited on the face of the matrix from which the duplicate records are to be made, as set forth in our application, Serial No. 236,074, filed December'S, 1904.

The invention will be better understood by reference to the accompanying drawings, wherein- Figure 1 is a perspective view of the improved sieve. Fig. 2 is a vertical sectional view thereof, and Fig. 3 is a'detail.

Referring to the drawings, 1 is the usual mesh 'or' Wire-netting constituting the bottom of the sieve and secured in any suitable manner, as bysoldering, to a ring or border 2- a of sheet-steel or other material. A disk 3, of

tin or other material,is secured to the center of the mesh 1 and forms a bearing whereon a similar disk 4 rests and rotates. To disk 4 is secured a handle 5, of any desired shape and material, and also a plurality of wires or fingers 6. The. disk 4, handle 5, andwires 6,

which together constitute the clearing.

fidisks 3 and 4 and wire mesh 1 and passes through a perforation in the closed end of a 1 can or cylinder 8, of tin or other suitable matl'ial, and to which'it is firmly secured in any suitable manner. This cylinder 8 is secured to the wire mesh 1 beneath the disk 3 and is in size equal to that of the ordinary label whichis affixed to the center. of duplicate sound-records of the flat or disk type. Beneath the wire mesh 1 is secured to the ring 2 by soldering or otherwise a continuous circular strip '9 of any suitable material of a diameter equal to that of the matrix, so asto confine the deposit of material to the surface of the matrix, and another continuous cil- Though susceptible to other uses, the invention is particularly useful in the nanu cular piece of materiallO is secured to the upper side of the wire mesh'in any suitable manner and constitutes the hopper for the retention of the material. The tube 7 besides holding the handle 5 in position is adapted to engage at its lower end a pin 11 on'the center of the matrix 12 to exactly center the sieve thereabove.

Aswill be understood'from the foregoing, when it is desired to effect a deposit of material on the desired ,surfacea matrix, for ex-v amplethe material to be deposited is placed in the sieve, the tube 7 is caused to engage the pin 11 atthe center of the matrix 12, and the sieve is lowered, thus closely confining the matrix by the strip,9, the label portion of the matrix being shielded by the can or cyl-' -1.-In a sieve,.the combination of a clearing device, means i or confining'the deposit of material to the desired surface, means ,for cen tering the sieve over said surface, and means for protectin a portion of said surface from the deposit oi material thereon.

' 2. In a sieve, the combination of 'a clearing roe the under side of the wire mesh to protect a portion of said surface from the deposit of material thereon.

4. Ina sieve, the combination of the wire 5 mesh, a clearing device, means for centerin the sieve over the surface on which materia is to be deposited, and 'a cylinder secured to the center of the under side of the Wire mesh to protect a portion of said surface from the 10 deposit of material thereon.

15- the material is to be deposited, and means arranged within said cylinder for centering the sieve over said surface.

6. In a sieve, the combinatlon of the wire mesh, a clearing device, a cylinder secured to the center of the under side of the wire mesh to protect a portion of the surface on which the material to be deposited, and a guide in the center ofthe cylinder for centering the sieve over the desired surface.

7. In a sieve, a foraminous material constituting the sieve proper, and means carried thereby and confining to an annular space the material deposited by said sieve.

In testimony. whereof we have signed this specification in the presence of two subscribing witnesses.

WILLIAM HELM HOYT. WILLIAM JOSEPH GAVEN. Witnesses:

W. J. GUGGENHEIM, GEORGE SWEENEY, Jr. 

